If you're even considering spending money on a movie that you normally might not see (COUGHCATWOMANCOUGH) because of the just released Halo 2 trailer that plays beforehand...don't bother. It's like 30 seconds long and probably a third of it is text screens, and the rest of it is so ADD-edited you can't even tell what's going on.

I know it's showing before Catwoman, I Robot and Spider-Man 2...there are probably a few others as well. A nice side benefit on Spider-Man 2 is the fact they show the Blade III trailer beforehand as well.